2026-04-11 19:22:38
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據新浪新聞報道:氧還原反應作為燃料電池和金屬-空氣電池中的重要反應過程,受到廣泛關注。傳統的氧還原反應催化劑為鉑基催化劑,鉑價格昂貴,其成本超過燃料電池堆總成本的55%。近年來,科研人員製備了一係列的非貴金屬催化劑,替代貴金屬鉑。其中,碳基催化劑因具有低成本、高穩定性、chuliangfengfu,yijijiaoqiangdekangyiyanghuatanhejiachunxingneng,huodeguanzhu。jinri,zhongguokexueyuanqingdaoshengwunengyuanyuguochengyanjiusuoxinxingnengyuantansucailiaotuanduiyanfaleyizhongdanchanzadeshimoquecailiao,yongzuoyanghaiyuanfanying,biaoxianchuyouyidecuihuaxingneng,xiangguanyanjiugongzuofabiaozaiACS Applied Materials & Interfaces上。

石墨炔是一種新型碳材料,由炔鍵和苯環連接而成,具有特殊的sp雜化碳原子,已被報道在光催化、電dian催cui化hua以yi及ji生sheng物wu方fang麵mian均jun表biao現xian出chu優you異yi特te性xing。新xin型xing能neng源yuan碳tan素su材cai料liao團tuan隊dui在zai前qian期qi工gong作zuo的de基ji礎chu上shang,不bu斷duan深shen入ru理li解jie石shi墨mo炔que材cai料liao的de電dian荷he結jie構gou,利li用yong石shi墨mo炔que材cai料liao獨du特te的de炔que鍵jian引yin起qi碳tan骨gu架jia中zhong部bu分fen碳tan原yuan子zi帶dai正zheng電dian的de特te性xing,進jin一yi步bu通tong過guo氮dan修xiu飾shi,將jiang石shi墨mo炔que材cai料liao成cheng功gong應ying用yong於yu氧yang還hai原yuan電dian催cui化hua反fan應ying,表biao現xian出chu優you異yi的de氧yang還hai原yuan催cui化hua性xing能neng。石shi墨mo炔que中zhong碳tan原yuan子zi被bei氮dan取qu代dai後hou,其qi電dian荷he結jie構gou將jiang被bei調tiao控kong,與yu氮dan相xiang鄰lin的de碳tan原yuan子zi表biao現xian出chu更geng強qiang的de正zheng電dian性xing,可ke作zuo為wei氧yang還hai原yuan反fan應ying的de活huo性xing中zhong心xin。由you於yu石shi墨mo炔que材cai料liao具ju有you不bu同tong於yu常chang規gui碳tan材cai料liao(石墨烯、碳納米管、石墨、無定形碳等)的特殊sp雜化碳原子,氮原子可以通過取代spzahuatan,dedaoxindedanchanzafangshi,lilunheshiyanjieguobiaomingzhezhongxindechanzafangshikeyiyouxiaotigaotancailiaodecuihuaxingneng。suozhidededanqudaideshimoquecailiaodeyanghaiyuancuihuaxingnengyushangyetanzaibocuihuajixiangdang。gaigongzuotupoledangqianyanjiujizhongyusp和sp2雜za化hua的de碳tan材cai料liao的de限xian製zhi,顯xian示shi石shi墨mo炔que在zai電dian催cui化hua材cai料liao和he燃ran料liao電dian池chi中zhong的de巨ju大da應ying用yong前qian景jing,也ye為wei降jiang低di氧yang還hai原yuan反fan應ying中zhong鉑bo等deng貴gui金jin屬shu催cui化hua劑ji高gao昂ang的de成cheng本ben和he儲chu量liang有you限xian的de問wen題ti,提ti供gong了le重zhong要yao的de解jie決jue途tu徑jing。
研究工作獲得了國家自然科學基金、中科院前沿科學研究計劃、中科院“百人計劃”以及自然科學基金山東省傑出青年基金等的支持。